Ok thanks guys for the answers! My gun is a wall hanger so it's not stressed at all. I'll try the magic pins so
It's just that when I received it there was no play at all and even if on real ar's there's a play between them, if for 20$ buck I can solve it, I'll try!
I just looked to order them but the shipping is 24$ for 2 small push pins. Is it because of the Canadapost lock-out?